Wasps head coach Dai Young described the late penalty awarded against his side in their 17-15 loss to Northampton as "a hard decision to accept".
Leading 15-14 going into the final minute of the Aviva Premiership clash at Adams Park, the hosts paid dearly for being guilty of an infringement at a scrum around 40 metres out.
Stephen Myler stepped up and duly landed the three points, giving Saints a narrow victory they had scarcely deserved after being second best for much of the second half.
"It was a hard decision to accept as it was for non-engagement at the first set. It was the first penalty for that offence during the game when there was reset after reset," Young said.
"Nobody expected us to win today; it was a massive challenge against a quality team in a very physical game.
"The players didn't get what they deserved for with 30 seconds to go I thought we were home"
Northampton counterpart Jim Mallinder conceded the visitors, who were able to throw on England internationals Dylan Hartley and Courtney Lawes from the bench, were fortunate to come out on top.
"The referee made a couple of close decisions," he admitted. "He made a brave decision at the first scrum and we were lucky it went our way.
"Stephen Myler is steady in those circumstances and kicked very well throughout the game."
Mallinder could take some pleasure from his team's defensive display, though the outcome could have been different had Wasps not lost Andy Goode.
The veteran fly-half was forced off with a leg injury early in the second half and, in his absence, stand-in kicker Elliot Daly missed three shots at the uprights.
"Defensively we were very strong but we gave away a couple of penalties for over exuberance," Mallinder continued.
"Wasps put us under a lot of pressure as we just couldn't get out of our own half.
"It was a massive win for us, away from home just before Christmas but we always knew it would be hard down here as last year we won with a try in the last minute."